i.MX Processors中的主题 Re: iMX25 external RTC https://community.nxp.com/t5/i-MX-Processors/iMX25-external-RTC/m-p/152784#M1503 <HTML><HEAD></HEAD><BODY><P>Update : RTC works</P><P></P><P>mxc25_3stack.c:</P><P>i2c_board_info mxc_i2c_board_info __initdata = {<BR /> {<BR /> .type = "m41t81s",<BR /> .addr = 0x68,<BR /> },</P><P></P><P>entry for this i2c device was reqd in the structure for it to work..</P><P></P><P>Venkat</P></BODY></HTML> Thu, 03 May 2012 05:08:40 GMT Venku 2012-05-03T05:08:40Z iMX25 external RTC https://community.nxp.com/t5/i-MX-Processors/iMX25-external-RTC/m-p/152783#M1502 <HTML><HEAD></HEAD><BODY><P>Hello I am trying to use an external RTC (m41t81s). Enabled this option under RTC in menuconfig, didn't yield any results. No device under /dev for rtc, neither an entry in sys/bus..</P><P>Under I2C RTC, have enabled M41t80.</P><P>I have removed the DryIce RTC.</P><P>Are there any tweaks reqd in BSP for this to run?</P><P></P><P>Venkat</P></BODY></HTML> Tue, 10 Apr 2012 09:33:39 GMT https://community.nxp.com/t5/i-MX-Processors/iMX25-external-RTC/m-p/152783#M1502 Venku 2012-04-10T09:33:39Z Re: iMX25 external RTC https://community.nxp.com/t5/i-MX-Processors/iMX25-external-RTC/m-p/152784#M1503 <HTML><HEAD></HEAD><BODY><P>Update : RTC works</P><P></P><P>mxc25_3stack.c:</P><P>i2c_board_info mxc_i2c_board_info __initdata = {<BR /> {<BR /> .type = "m41t81s",<BR /> .addr = 0x68,<BR /> },</P><P></P><P>entry for this i2c device was reqd in the structure for it to work..</P><P></P><P>Venkat</P></BODY></HTML> Thu, 03 May 2012 05:08:40 GMT https://community.nxp.com/t5/i-MX-Processors/iMX25-external-RTC/m-p/152784#M1503 Venku 2012-05-03T05:08:40Z